Nailing-machine



(No Model.) I i 2 Sheets-heet 1 W. O. EVANS & J. P. SMITH.

NAILING MAGHINE. No. 367,282. Patented July 26, 1887. Tigl. E 12.

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(No Model.) 2 SheetsSheet 2,

O. EVANS & J P. SMITH.

NAILING MACHINE. N0. 367,282. Patented July 26, 1887. E55. Fig.4.

' x 3' 5 II I c a;- a5 j? I 6 J: v y I I a g 9; j: f 3' 1| 9 WT F \1 T iessas s s E ur s 11 0 a id I To all whom it may concern:

. UNITED STATES PATENT OFFICE.

WARREN o. EVANS AND JOHN 'P. SMITH, or EXETER, NEW HAMPSHIRE.

NAlLlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 367,282, dated July 26,1887. Application filGLlMflY lf-Z, 1886. Serial No. 201,949. (No model.)

Be it known that we, W'ARREN O. EVANS and JOHN P. SMITH, both citizensof the United States, residing at Exeter, in the county of Rockinghamand State of New'Hampshire, have jointly invented certain new and usefulImprovements in Nailing-Machines; and we do hereby declare that the sameare full y described in the following specification and illustra in theaccompanying drawings.

This v tion relates to improvements in nailing-machines for the purposeof nailing,

, pegging, or lasting boots and shoes; and itrein Fig. l.

lates, particularly, to improvements upon the apparatus for this purposefor which an application-for a patent was filed by us on J anuary 4,1886, Serial No. 187,606.

Our present invention is carried out as follows, reference being had tothe accompany-- ing drawings, where- Figure 1 represents a front view ofthe improved nailing-maehine. Fig. 2 represents a side view of the same,as seen'from X in Fig. 1. Fig. 3 represents a vertical section on theline A B, shown in Fig. 2; and Fig. 4 repre sents a vertical section onthe line C D, shown Fig. 5 represents aside view of the nail as cut offfrom the wire within the machine.

Similar letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

a is the frame or handle, asnsual, having a cylindrical longitudinalrecess, a, in which the driver-barb is guided ,as usual. The driverbar bis normally held in its highest position by the influence of the coiledspring 0, that surrounds said driver-bar between the offset or shouldera on frame a and anadjustable collar, 12, secured to the driver-bar nearits upper end by means of suitable set-screws, as shown, by whicharrangement the pressure of the spring -c may be varied, as may berequired, simplyby raising or lowering the collar b on the bar I) andsecuring it to the latter in the desired position.

b is the head of driverbar, as usual, and b is a leather or other softwasher placed below said head, as shown in the drawings. Such washer isadapted to come in contact with the upper end of the tubular extension aon frame a when the driverbar is forced downward .to thelimit of itsstroke, so as to soften the blow on the driver-bar at this point of itsstroke. The lower end, I), of the driver-bar is inclined. or tapering,as shown in Figs. 3 and 4, for the p11 rpose of actuating thewire-holding and corrugating lever, theycuttingdevice lever, and thenail-carrying lever, as will hereinafter be more fully described.

0' is a longitudinal groove on one side of the driver-bar 12, into whichfits loosely the inner end of the pin or screw d, as usual, such pin orscrew being secured to frame a, to prevent the driver-bar from turningaround its axis while moving up and down in its bearing in frame a.

b is the driver, as usual,seeured to the lower end of the driver-bar b,and guided in a corresponding perforation, a, in the lower portion offrame a, such perforation being centrally in a line with the driver-barb above it, and with the perforation c in the nailtube 6 below it, as isusual on nail-driving machines. The nail-tube e is driven into orotherwise secured in the lower perforated end of the nailtube bracket E,which latter is secured in a suitable manner to the lower end of theframe a, as shown in the drawings.

On one side of the nail-driver perforation a is'located,within a recessin the lower portion of frame a, the stationary wire-clamping tube f,through which the wire 9 is intermittently fed downward through thechannel a in frame a, as shown in Fig. 3.

The feeding mechanism for intermittently feeding the wire 9 (from a reelor otherwise) through channel a and into clamping-tubef is precisely thesame as shown and described in our previous application above mentioned,and consists of a lever, h, hinged in its lower end to frame a, andnormally held outward in the position shown in Figs. 2 and 4 by theinfluence of spring 71., the lever it having hinged to it near its upperend the pawl it, that acts on the ratchet-wheel If, journaled ona studinframe a, and having attached to it a grooved feed-roller, between whichand a correspondingly-grooved second roller the wire is fed downward thedesired distance whenever the operator grasps handle a and presses thelever h toward the frame a against the influence of IOO shown in Figs. 2

the spring h, in the usual and well-known manner common for feeding wirein nailingmachines.

At 7. on one side of the frame a, is pivoted the clampingdevcr It,having inclined or cam shaped upper end, 7;, as shown in Fig. 4; and itis normally held in the position shown in said figure by means of thespring it, secured in its upper end to frame (I, and having its lowerend pressing on lever 7; at a point be tween its fulcrum and upper end,as shown. The lower end of lever 1.: has a serrated or corrugatedclamping-piece, 7r, adapted to onterthrough a sideopening or cut-awayportion, f, in clamping-tubef,as shown in Figs. 3 and i, 4, so as tohold the wiregiirmly in said clampingtube when the uppcrend of leverlkvis forced outward by the lower end of the driverbar acting on it whensaid driver-bar first commences to pass downward. By having the elampingnece it made serrated or corrugated, as described, it will not alonecause the wire to be held'very firmly in the clamping-tubef while saidwire is being cut off and heated, but it will also cause the wire to beserrated, indented, or corrugated, so as to hold more firmly when drivenin the boot or shoe sole.

One side of clamping-tube fis made tapering, as shown at f in Fig. 3,and in contact with such tapering side lies the lower wedge shaped edge,Z, of the shearing or eutter bar Z, that passes obliquely through agroove or recess in the lower portion of the frame a, as shown in Fig.3, and it is properly guided in its up and-down motion in such recess bymeans of the guide'piece in, pivoted at m. to frame a, and having itsupper end held in contact with the bar I by means of the spring m,secured to framea, and having its free end pressing on the outside ofguidepiece m, as

and 3, by which arrangement the cutter-bar Z is properly guided, and anywear on it is compensated for by the springpressed guide-piece m.

n is a bent lever pivotedto frame a at a, and having its outer endpassing through a perforation in the upper end of cutter-bar I, as shownin Figs. 1 and 3.

a is the upper inclined or cam-shaped upper end of lever n,that isactuated by the lower inclined end of the driver-bar as the latter isforced downward. The lover a is normally held in the position shown inFig. 3 by the influence of spring 723, the upper end of which is securedto the frame a and the free end pressing on the outside of lever 11.between its fulcrum and upper end, as shown in Fi 3.

0 is the laterally-movable nail-carrier adapted to slide forward andback in a groove or recess in the upper portion of the nail-tube bracketE, as shown in Figs. 3 and 4;, such carrier having a verticalperforation, 0, located in a line with and centrally below the verticalperforation in the clamping-tube f when the carrier 0 is in position forreceiving the wire from the clamping-tube f, as shown in Figs. 3 and 4.After the wire has been fed into the perforation in the nail-carrier 0,been clamped in the clamping-tube f, and a length of nail out off, thecarrier 0 is moved laterally, so that its perforation 0 and the nailheld therein shall come in a line with the nail-driver perforation a andnail-tube perforation e, such movement being accomplished by means oflever 12, pivoted at p to framea and jointed in its lower end to thecarrier 0, as shown in Fig. 4. The upper end, 1", of lever p is inclinedor camshaped, and is forced outward bythc driverbar as it descends, anda spring, 1:, returns the lever p to its normal position, (shown in Fig.4-, when the driver-bar is carried upward to the position shown in saidFig. i. The said spring 1) is secured in its upper end to frame a, andits lower free end presses on the outside of lever p at a point betweenits fulcrum and upper end, as shown in said Fig. 4.

q is a stopplatc secured by means of screw 51 to frame a, by whicharrangement the motion of carrier 0 is limited in one direction. Asetscrew, 1', passing loosely through a perforation in the stop-plate qand screwed into the end of carrier 0, limits the motion of the latterin the opposite direction to receive the nail-wire from theclamping-tube f, and after the nail has been cut to convey it directlybe low the driver and above the nail-tube perforation, as described.

Below the nail-carrier 0 is secured in the nail-bracket E the smallsteel or metal plate 8, that serves as a rest for the lower end of thewire when fed downward through the clamping-tubef into perforation o, asshown in Figs. 3 and 4.

1, in Figs. 1 and 2, is a thumbrcst adapted to receive the thumb of theoperator while holding and operating the machine.

G, in Fig. 5, represents the nail as cut off from the wire g by thecutter-bar ZZ, the point G of said nail being made by the cutting-edgeof said bar, while the head G is produced by the inclined lower end ofsaid cutter-bar bending the upper end of the detached wire to one side,as shown in Fig. 5.

The operation of the machine is as follows: \Ve will suppose thedifferent parts in their re spcctive positions, as represented in thedrawings, and the lower end of the nail-wire cutoff to an inclinedpoint, as represented in Fig. 3.

.The operator then grasps the frame or handle a and places the lowerend. of nail-tube 0 upon that part of the shoe-sole where the nail is tobe driven. By forcing lever h byone hand toward frame a the requisitelength of nail-wire is fed downward in the same manner as described inour previous application above mentioned, its lower end passing intocarrierperforation 0 in carrier 0. By forcing the driver-bar b downward,either by a blow from the hand, a mallet, or other suitable means, itslower inclined end I) first comes in contact with the upper end ofclamping-lever 70, causing its lower serrated end k to impinge on,serrate, and hold the wire firmly in the clamping-tubef. As thedriver'ba-r descends further, it comes in contact with the rockdever a,causing the cutter-bar Z to move downward in an inclined directiontoward the axis of the wire and to pass by it and shear it off, and inso doing forming a one-sided bead-head, G, on the nail sheared off fromthe wire and leaving a tapering point, G, on the remaining portion ofthe wire 9. By the further descent of the driver-bar b the carrier-leverp is actuated, by which the carrier 0 is moved laterally, so that itsperforation 0 and the headed and pointed nail held therein comes in aline with the nail-driver perforation a and nail-tube perforation e, andas the driver-bar b continues to descend its driver I) will pass down-oward through the perforations a, 0, and 6', thus driving the nail intothe material. During the upward motion of the driver-bar b, as caused bythe influence of the spring a after the blow on the head I) has beengiven, the levcrs19,n,and k remain in the positions herein above lastmentioned until the lower end of the driver I) has passed out of thenail-carrier perforation 0", when the levers p, a, and 76 and theirrespective connections are returned to their normal positions (shown inFigs. 3 and 4) by the influence of the springs 19 01, and and themachine is now in a condition for feeding, clamping, and cutting offanother portion of thewire, forming a nail, carrying it centrally belowthe driver, and driving it into the material, and so on.

Having thus fully described the nature, constrnction, and operation ofour invention,.we wish to secure by Letters Patent, and claim.

1. In a nailing-machine, the frame a and reciprocating driver-bar b, in.combination with the clamping-lever. is, pivoted to frame a, and havingits lower clamping end, 7c, adapted to enter the tube f, for the purposeof holding the wire firmly in position while a nail is severed from it,as set forth.

2. In a nailing-machine, the frame a and driver-bar b, in combinationwith the lever is, its spring and. clamping-surface k, as and for thepurpose set forth.

3. In a nailing-machine, the frame a and reciprocating driver-bar b, incombination with the lever p, its spring 10 perforated carrier 0, p

and stop device qr, all'combined and arranged to operate as set forth.

4. In a nailing-machine, the frame a and reciprocating driver-bar b, incombination with the clamping-tube f, having inclined sidef,

and the cutter-bar Z, adapted to move across the path of the wire and incontact with said inclined side f, as and for the purpose set forth.

5. In a nailing-machine, the frame a and reciprocating 'drivenbar I),combined with the rock-leve1'n,the cutter-bar Land pivoted guidepiece m,with its spring at, as and for the purpose set forth. 4

- In testimony whereof we have affixed our signatures in presence of twowitnesses.

WARREN O. EVANS. JOHN 1?. SMITH. WVitncsses: I J OHN ONEILL, WILLIAM P.MoULToN.

